2018780240

素因数分解:

$2^4\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{19577}}^1$

素因数の和:20879

約数の個数: 40

約数和(自身を含む): 4697545320

約数和(自身を除く): 2678765080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1289, 2578, 5156, 6445, 10312, 12890, 19577, 20624, 25780, 39154, 51560, 78308, 97885, 103120, 156616, 195770, 313232, 391540, 783080, 1566160, 25234753, 50469506, 100939012, 126173765, 201878024, 252347530, 403756048, 504695060, 1009390120, 2018780240]

約数ペア:

[(1, 2018780240), (2, 1009390120), (4, 504695060), (5, 403756048), (8, 252347530), (10, 201878024), (16, 126173765), (20, 100939012), (40, 50469506), (80, 25234753), (1289, 1566160), (2578, 783080), (5156, 391540), (6445, 313232), (10312, 195770), (12890, 156616), (19577, 103120), (20624, 97885), (25780, 78308), (39154, 51560)]